Supercapacitor electrodes based on polyaniline-silicon nanoparticle composite

Qiang Liu; Munir H. Nayfeh; Siu Tung Yau

doi:10.1016/j.jpowsour.2009.12.042

Supercapacitor electrodes based on polyaniline-silicon nanoparticle composite

Qiang Liu, Munir H. Nayfeh, Siu Tung Yau

Physics

Research output: Contribution to journal › Article › peer-review

Abstract

A composite material formed by dispersing ultrasmall silicon nanoparticles in polyaniline has been used as the electrode material for supercapacitors. Electrochemical characterization of the composite indicates that the nanoparticles give rise to double-layer capacitance while polyaniline produces pseudocapacitance. The composite shows significantly improved capacitance compared to that of polyaniline. The enhanced capacitance results in high power (220 kW kg^-1) and energy-storage (30 Wh kg^-1) capabilities of the composite material. A prototype supercapacitor using the composite as the charge storage material has been constructed. The capacitor showed the enhanced capacitance and good device stability during 1000 charging/discharging cycles.

Original language	English (US)
Pages (from-to)	3956-3959
Number of pages	4
Journal	Journal of Power Sources
Volume	195
Issue number	12
DOIs	https://doi.org/10.1016/j.jpowsour.2009.12.042
State	Published - Jun 15 2010

Keywords

Composite material
Nanoparticle
Supercapacitor

ASJC Scopus subject areas

Renewable Energy, Sustainability and the Environment
Energy Engineering and Power Technology
Physical and Theoretical Chemistry
Electrical and Electronic Engineering

Online availability

10.1016/j.jpowsour.2009.12.042

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title = "Supercapacitor electrodes based on polyaniline-silicon nanoparticle composite",

abstract = "A composite material formed by dispersing ultrasmall silicon nanoparticles in polyaniline has been used as the electrode material for supercapacitors. Electrochemical characterization of the composite indicates that the nanoparticles give rise to double-layer capacitance while polyaniline produces pseudocapacitance. The composite shows significantly improved capacitance compared to that of polyaniline. The enhanced capacitance results in high power (220 kW kg-1) and energy-storage (30 Wh kg-1) capabilities of the composite material. A prototype supercapacitor using the composite as the charge storage material has been constructed. The capacitor showed the enhanced capacitance and good device stability during 1000 charging/discharging cycles.",

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AU - Liu, Qiang

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AU - Yau, Siu Tung

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Y1 - 2010/6/15

N2 - A composite material formed by dispersing ultrasmall silicon nanoparticles in polyaniline has been used as the electrode material for supercapacitors. Electrochemical characterization of the composite indicates that the nanoparticles give rise to double-layer capacitance while polyaniline produces pseudocapacitance. The composite shows significantly improved capacitance compared to that of polyaniline. The enhanced capacitance results in high power (220 kW kg-1) and energy-storage (30 Wh kg-1) capabilities of the composite material. A prototype supercapacitor using the composite as the charge storage material has been constructed. The capacitor showed the enhanced capacitance and good device stability during 1000 charging/discharging cycles.

AB - A composite material formed by dispersing ultrasmall silicon nanoparticles in polyaniline has been used as the electrode material for supercapacitors. Electrochemical characterization of the composite indicates that the nanoparticles give rise to double-layer capacitance while polyaniline produces pseudocapacitance. The composite shows significantly improved capacitance compared to that of polyaniline. The enhanced capacitance results in high power (220 kW kg-1) and energy-storage (30 Wh kg-1) capabilities of the composite material. A prototype supercapacitor using the composite as the charge storage material has been constructed. The capacitor showed the enhanced capacitance and good device stability during 1000 charging/discharging cycles.

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KW - Nanoparticle

KW - Supercapacitor

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Supercapacitor electrodes based on polyaniline-silicon nanoparticle composite

Abstract

Keywords

ASJC Scopus subject areas

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